LAPSE:2023.2356
Published Article
LAPSE:2023.2356
Progress of Methylation of C6-8~Arene with Methanol: Mechanism, Catalysts, Kinetic/Thermodynamics and Perspectives
February 21, 2023
Abstract
High-efficiency production of xylene/trimethylbenzene from benzene/toluene with methanol is a potential way to promote the implementation on the coupled cycle development strategy of petrochemical and coal chemical industry and optimize the resource structure. At the same time, relying on the innovation of catalytic new materials, physical chemistry, intelligent capture technology, process engineering, and other principles and methods, p-xylene (PX) and trimethylbenzene (TMB) with higher added value were prepared by C6-8~arene methylation, which could elevate the level of methylation field and improve the competitiveness of the industry. This paper focuses on the one-step methylation reaction of benzene with methanol or toluene with methanol to obtain high-purity p-xylene (BM-PX/TM-PX), and the one-step methylation reaction of xylene with methanol to obtain mesitylene (XM-TMB). The methylation reaction mechanism and the preparation strategy of a high-performance catalyst were reviewed. The high selectivity of PX obtained by precisely controlling the pore size and acid site distribution of zeolites was emphasized. Meanwhile, the current research progress of TMB, the kinetic/thermodynamics of the BM-PX/TM-PX, and XM-TMB methylation reaction were described. Based on a literature research and the conclusion of our research group, the mechanism of methylation reaction process was expounded. Finally, the new research direction of catalysts used and reaction process in methylation reaction were prospected in order to guide the rapid development of this field.
High-efficiency production of xylene/trimethylbenzene from benzene/toluene with methanol is a potential way to promote the implementation on the coupled cycle development strategy of petrochemical and coal chemical industry and optimize the resource structure. At the same time, relying on the innovation of catalytic new materials, physical chemistry, intelligent capture technology, process engineering, and other principles and methods, p-xylene (PX) and trimethylbenzene (TMB) with higher added value were prepared by C6-8~arene methylation, which could elevate the level of methylation field and improve the competitiveness of the industry. This paper focuses on the one-step methylation reaction of benzene with methanol or toluene with methanol to obtain high-purity p-xylene (BM-PX/TM-PX), and the one-step methylation reaction of xylene with methanol to obtain mesitylene (XM-TMB). The methylation reaction mechanism and the preparation strategy of a high-performance catalyst were reviewed. The high selectivity of PX obtained by precisely controlling the pore size and acid site distribution of zeolites was emphasized. Meanwhile, the current research progress of TMB, the kinetic/thermodynamics of the BM-PX/TM-PX, and XM-TMB methylation reaction were described. Based on a literature research and the conclusion of our research group, the mechanism of methylation reaction process was expounded. Finally, the new research direction of catalysts used and reaction process in methylation reaction were prospected in order to guide the rapid development of this field.
Record ID
Keywords
arene, catalyst, kinetics/thermodynamics, mechanism, methylation
Subject
Suggested Citation
Dong P, Shao T, Zhao Y, Ji D, Yang Y, Zhao X, Li H, Tian J, Wang D, Li G. Progress of Methylation of C6-8~Arene with Methanol: Mechanism, Catalysts, Kinetic/Thermodynamics and Perspectives. (2023). LAPSE:2023.2356
Author Affiliations
Dong P: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Shao T: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Zhao Y: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Ji D: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Yang Y: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China [ORCID]
Zhao X: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Li H: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Tian J: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Wang D: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Li G: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Shao T: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Zhao Y: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Ji D: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Yang Y: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China [ORCID]
Zhao X: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Li H: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Tian J: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Wang D: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Li G: School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, China
Journal Name
Processes
Volume
10
Issue
5
First Page
881
Year
2022
Publication Date
2022-04-29
ISSN
2227-9717
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PII: pr10050881, Publication Type: Review
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LAPSE:2023.2356
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https://doi.org/10.3390/pr10050881
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Feb 21, 2023
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